In what type of pre-existing feature might a subterranean yellowjacket colony establish itself?

Abandoned rodent burrows or natural depressions in the soil

Subterranean species, particularly certain types of yellowjackets, favor utilizing existing underground features to begin their colonies. The primary choice for these ground nests is often an abandoned rodent burrow, which already provides a ready-made tunnel system beneath the surface. Alternatively, natural depressions in the soil or areas protected by dense vegetation that offers camouflage are selected. These locations minimize the amount of excavation the founding queen needs to perform, offering an immediate, secure chamber that mimics a safe, underground environment, often found near foundations or in shaded yard corners.